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High-performance flexible p-type Ce-filled Fe3CoSb12 skutterudite thin film for medium-to-high-temperature applications

Author

Listed:
  • Dou Li

    (Northwestern Polytechnical University)

  • Xiao-Lei Shi

    (Queensland University of Technology)

  • Jiaxi Zhu

    (Northwestern Polytechnical University)

  • Tianyi Cao

    (Queensland University of Technology)

  • Xiao Ma

    (Northwestern Polytechnical University)

  • Meng Li

    (Queensland University of Technology)

  • Zhuokun Han

    (Northwestern Polytechnical University)

  • Zhenyu Feng

    (Northwestern Polytechnical University)

  • Yixing Chen

    (Northwestern Polytechnical University)

  • Jianyuan Wang

    (Northwestern Polytechnical University)

  • Wei-Di Liu

    (Queensland University of Technology)

  • Hong Zhong

    (Northwestern Polytechnical University)

  • Shuangming Li

    (Northwestern Polytechnical University)

  • Zhi-Gang Chen

    (Queensland University of Technology)

Abstract

P-type Fe3CoSb12-based skutterudite thin films are successfully fabricated, exhibiting high thermoelectric performance, stability, and flexibility at medium-to-high temperatures, based on preparing custom target materials and employing advanced pulsed laser deposition techniques to address the bonding challenge between the thin films and high-temperature flexible polyimide substrates. Through the optimization of fabrication processing and nominal doping concentration of Ce, the thin films show a power factor of >100 μW m−1 K−2 and a ZT close to 0.6 at 653 K. After >2000 bending cycle tests at a radius of 4 mm, only a 6 % change in resistivity can be observed. Additionally, the assembled p-type Fe3CoSb12-based flexible device exhibits a power density of 135.7 µW cm−2 under a temperature difference of 100 K with the hot side at 623 K. This work fills a gap in the realization of flexible thermoelectric devices in the medium-to-high-temperature range and holds significant practical application value.

Suggested Citation

  • Dou Li & Xiao-Lei Shi & Jiaxi Zhu & Tianyi Cao & Xiao Ma & Meng Li & Zhuokun Han & Zhenyu Feng & Yixing Chen & Jianyuan Wang & Wei-Di Liu & Hong Zhong & Shuangming Li & Zhi-Gang Chen, 2024. "High-performance flexible p-type Ce-filled Fe3CoSb12 skutterudite thin film for medium-to-high-temperature applications," Nature Communications, Nature, vol. 15(1), pages 1-13, December.
    • Handle: RePEc:nat:natcom:v:15:y:2024:i:1:d:10.1038_s41467-024-48677-4
    DOI: 10.1038/s41467-024-48677-4
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    References listed on IDEAS

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    1. Natsumi Komatsu & Yota Ichinose & Oliver S. Dewey & Lauren W. Taylor & Mitchell A. Trafford & Yohei Yomogida & Geoff Wehmeyer & Matteo Pasquali & Kazuhiro Yanagi & Junichiro Kono, 2021. "Macroscopic weavable fibers of carbon nanotubes with giant thermoelectric power factor," Nature Communications, Nature, vol. 12(1), pages 1-8, December.
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